﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/


namespace Xceed.Silverlight.DataGrid
{
  internal class LayoutRange
  {
    public LayoutRange(double offset, double length)
    {
      if( length < 0 )
        throw new DataGridInternalException();

      this.Offset = offset;
      this.Length = length;
    }

    public double Offset { get; private set; }
    public double Length { get; private set; }

    public override int GetHashCode()
    {
      return this.Offset.GetHashCode() ^ this.Length.GetHashCode();
    }

    public override bool Equals( object obj )
    {
      LayoutRange range = obj as LayoutRange;
      if( range == null )
        return false;

      return ( this.Offset == range.Offset && this.Length == range.Length );
    }

  }
}
